/*
 * Tencent is pleased to support the open source community by making BK-CI 蓝鲸持续集成平台 available.
 *
 * Copyright (C) 2023 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * BK-CI 蓝鲸持续集成平台 is licensed under the MIT license.
 *
 * A copy of the MIT License is included in this file.
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of
 * the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
 * NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package com.tencent.bkrepo.ddc.component

import com.google.common.cache.Cache
import com.google.common.cache.CacheBuilder
import com.google.common.util.concurrent.ThreadFactoryBuilder
import com.tencent.bkrepo.common.service.otel.util.AsyncUtils.trace
import com.tencent.bkrepo.ddc.config.DdcProperties
import com.tencent.bkrepo.ddc.event.RefDownloadedEvent
import com.tencent.bkrepo.ddc.pojo.RefId
import com.tencent.bkrepo.ddc.service.ReferenceService
import org.slf4j.LoggerFactory
import org.springframework.stereotype.Component
import java.time.LocalDateTime
import java.util.concurrent.ArrayBlockingQueue
import java.util.concurrent.ThreadPoolExecutor
import java.util.concurrent.TimeUnit

@Component
class RefDownloadListener(
    private val ddcProperties: DdcProperties,
    private val referenceService: ReferenceService,
) {
    // 更新节点访问时间任务线程池
    private val updateAccessDateExecutor = ThreadPoolExecutor(
        4,
        8,
        60,
        TimeUnit.SECONDS,
        ArrayBlockingQueue(1000),
        ThreadFactoryBuilder().setNameFormat("update-access-date-%d").build(),
        ThreadPoolExecutor.CallerRunsPolicy()
    )

    // 节点下载后将节点信息放入缓存，当缓存失效时更新accessDate
    private val cache: Cache<RefId, LocalDateTime> = CacheBuilder.newBuilder()
        .maximumSize(1000)
        .concurrencyLevel(1)
        .expireAfterAccess(30, TimeUnit.MINUTES)
        .removalListener<RefId, LocalDateTime> {
            updateAccessDateExecutor.execute(
                Runnable {
                    updateRefLastAccessDate(it.key!!, it.value!!)
                }.trace()
            )
        }
        .build()

    fun onRefDownloaded(event: RefDownloadedEvent) {
        with(event.ref) {
            cache.put(RefId(projectId, repoName, bucket, key.toString(), legacy), LocalDateTime.now())
        }
    }

    private fun updateRefLastAccessDate(ref: RefId, accessDateTime: LocalDateTime) {
        if (!ddcProperties.updateRefLastAccessTime) {
            logger.info("mock update ref access time [$ref]")
            return
        }
        try {
            referenceService.updateLastAccess(ref, accessDateTime)
        } catch (ignore: Exception) {
            logger.warn("update ref access time [$ref] error, ${ignore.message}")
        }
    }

    companion object {
        private val logger = LoggerFactory.getLogger(RefDownloadListener::class.java)
    }
}
